Colorado casinos won big in 2018, but they could make even more if voters OK sports betting this fall Joe Rubino, The Denver Post · June 12, 2019 at 8:36 pm The house won big in Colorado last year. Casinos in Black Hawk, Central City and Cripple Creek combined to rake in a record $842.1 million in revenue in 2018, according to a new report from the American Gaming Association. The haul represented a 1.7 percent increase over the $828 million the industry banked in Colorado in 2017 and a nearly 13 percent increase over 2014. The report, the Gaming Association’s 2019 edition of its annual “State of the States” roundup, found Colorado isn’t the only place where casinos are riding high. Twelve of 24 states with legalized commercial gambling saw record revenues last year, according to the research. In total, the industry brought in an all-time high of $41.7 billion in 2018, up 3.5 percent over 2017.